Wonderful review
The 1st Delta Advanced Automation Contest
http://www.deltagreentech.com.cn/sc/campaign/jingsai2014

The 2nd Delta Advanced Automation Contest
http://www.deltagreentech.com.cn/sc/campaign/jingsai2015

The 3rd Delta Advanced Automation Contest
http://mkt.deltagreentech.com.cn/2016/jingsai/en/introduction.asp

The 4th Delta Advanced Automation Contest
http://mkt.deltagreentech.com.cn/2017/jingsai/en/introduction.asp

The 5th Delta Advanced Automation Contest
http://mkt.deltagreentech.com.cn/2018/jingsai/en/introduction.asp